Fire-hose nozzle.



J. LEACHTNEAUER.

FIRE HOSE NOZZLE. APPLICATION FILED MAY 20. 1916.

1,199,470. Patented Sefib. 26,1916.

Fig. 1

JOHN LEACHTNEAUER, F ITI-IACA, NEW' YORK.

FIRE-HOSE NOZZLE.

Specification of Letters Patent.

Patented Sept. 2%, 191%.

Application filed May 20, 1916. Serial No. 98,838.

To all whom it may concern Be it known that I, JOHN LEACHTNEAUER, a citizen of the United States, residing at Ithaca, in the county ofoTompkins and State of New York, have invented certain new and useful Improvements in Fire-Hose Nozzles, of which the following is a specification.

This invention relates to certain new and useful improvements in fire hose nozzles.

The primary object of the invention is the provisionof an adjustable nozzle for fluid conducting hose which is composed of but few parts easily and cheaply manufactured and designed for changing the outlet area of the nozzle at the will of the operator.

A further object of the device is the provision of a nozzle especially adapted for fire hose whereby the size of the delivered stream is easily changed, the nozzle possessing great strength and formed of but few parts advantageously arranged for preventing a leaking of the water.

A still further object of the device is to provide a nozzle adapted for the reception of water of the entire area of the supply hose and gradually contracting the stream until its final delivery as a stream of the desired size, provision being also made for a reduced jet stream. v

With these general objects in view and others that will appear as the nature of the invention is better understood, the same consists in the novel construction, combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawings, and then claimed.

In the drawings forming a part of this application and in which like designating characters refer to corresponding parts throughout the several views :-Figure 1 is a central longitudinal sectional View through the device attached to a fire hose, a portion of the nozzle being shown in side elevation. Fig. 2 is a front elevation there of with the nozzle opening. Fig. 3 is an interior elevational view of the stream discharging forward section of the nozzle, and, Fig. 4': is a rear end elevation of the stream reducing nozzle section.

Referring more in detail to the drawings, the device broadly consists of a nozzle comprising astream reducing portion detachably secured to a discharge section 11 by means of a coupling nut 12, the supply hose 13 of the water line being attached to the said section 10. The said reducing section 10 consists of a metallic cylinder having a roughened or knurled exterior hand hold surface 1 f adjacent its rear end and with a converging slightly oblique for wardly-extending internal bore 15. The said member 10 is provided with an axially arranged threaded enlarged opening or socket 16 at the rear end of the aforementioned bore and in its socket the attaching nipple or bushing 17 of the hose 13 is removably secured and whereby the nozzle is detachably connected to the said hose.

Both of the sections 10 and 11 present a solid cylindrical block appearance, the mem ber 11 being of cylindrical form arranged with an axial recess 18 adapted for the reception of the forward end of the reducing member 10 forming a close fit therewith, the said members 10 and 11 being relatively rotatable with the inner end 19 of the section 10 in flat frictional seating engagement with the bottom or inner end 20 of the socket 18.

The reducing section 10 is provided with an annular engaging ring 21 positioned substantially centrally thereof upon its outer surface and adapted for engagement by the inwardly extending flange 22 of the coupling nut 12, the latter having threaded engagement with the slightly enlarged inner end portion 23 of the section 11 and having an angularly projecting wrench hold surface 24..

The outer or delivery section 11 of the nozzle is provided forwardly of the recessed bottom 20 with three discharge passages 25, 26 and 27 of diminishing diameters, each of the said passages being arranged for central longitudinal alinement with the contracted discharge end of the bore 15 upon a relative turning of the nozzle sections 10 and 11. The largest passage is of constant cross sectional area of the same diameter as the reduced end of the bore 15 and as best illustrated in Fig. 1 of the drawing, when the passage 25 is operatively positioned in advance of the bore 15, the water enters the bore 15 from the hose 13 being gradually reduced and carried slightly laterally toward one side of the member 10 finally entering the passage 25 and being conducted therethrough for final discharge at the free forward end 28 of the nozzle section 11.

The passage 26 has a forward portion 29 of uniform diameter conforming to the size of the stream to be delivered while the inner end of the passage 26 is flared as at 30, forming a portion of the passage 26 of substantially the same taper as the adjacent outer end of the bore 15,, It will be understood that when the passage 26 is arranged with its portion 30 in axial alinement with the outlet end of the bore 15, the water passing through such bore and reduced thereby will be further reduced in diameter by the passage portion 30 until it reaches the passage portion 29 and is discharged from the mouth of the opening 26 of a diameter equal to that of the passage portion 29.

The third and smallest stream to be dis charged by the present nozzle employs the passage 27 which is of a constant taper from its inner end 30 which is flush with the recessed bottom 20 outwardly to the discharge face 28 of the nozzle.

\Vith the complete device assembled upon the hose 13 as illustrated in Fig. l of the drawing, it will be seen that the solid portions of the sections 10 and 11 are in intel-engaging contact with each other, pre senting a nozzle of extreme strength, the coupling nut 12 detachably retaining the said sections together. It will be understood that the coupling nut 12 which engages the ring 21 does not lock the sections 10 and 11 against relative revolution as the operation of the device requires a relative turning of the nozzle member 10 within the recess 18 of the member 11. By'grasping the roughened surface l l of the section 10 and supporting the section 11 in the hands of the operator, such sections may be easily relatively shifted for bringing either desired one of the passages 25, 26 or 27 in operative arrangement with respect to the bore 15 and whereby a stream will be delivered from the nozzle conforming to the diameter of the outlet ends of either of the said passages 25, 26 or 27 at the discharge face 28 of the nozzle.

The gradual reduction of the stream by the bore 15 and its lateral trend for axial connection with either of the passages 25, 26 27 r vid av nozzle that is not calculated to leak or waste the water but to deliver the same with the maximum amount of pressure possible, thereby rendering the nozzle especially adapted for employment with fire hose.

While the form of the invention herein shown and described is vwhat is believed to be the preferred embodiment thereof, it is nevertheless to be understood that various forms, modifications ,and arrangement of the parts may be made without departing from the spirit and scope of the invention as claimed.

What I claim as new is 1. A coupling comprising a reducing section having a tapered deflected bore extending therethrough and having a receiving socket at its outer end adapted for the reception of a supply hose, a projecting ring centrally carried by the said section, the rear end of the said section having a knurled hand'hold, a discharge section of cylindrical form having a recess in one end within which the said reducing section is journaled when the device is assembled, a connecting nut engaging the said ring and discharge section, the said discharge section being pro vided with a relatively large passage of uniform diameter, a relatively small tapered outlet passage, and an intermediate passage of combined uniform and tapered portions.

A coupling comprising a reducing section having a tapered deflected bore extending therethrough and having a receiving socket at its outer end adapted for the reception of a supply hose, a projecting ring centrally carried by the said section, the

rear end of the said section having a knurled hand held, a discharge section of cylinchical form having a recess in one end within which the said reducing section is jonrnaled when the device is assembled, a

connecting nut engaging the said ring and discharge section, the said discharge section being arranged with a relatively large pas sage of uniform diameter, a relatively small passage of graduated taper, and a passage of intermediate size having a discharge end of constant diameter and a tapered connecting portion opening at the inner end of the said recess in a diameter equal to that of the contracted discharge end of the said bore.

In testimony whereof I afiix my signature.

JOHN LEACHTNEAUER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, I). G. 

